diff --git a/utils/guard-malloc-swift b/utils/guard-malloc-swift
deleted file mode 100755
index 05660e54988ff..0000000000000
--- a/utils/guard-malloc-swift
+++ /dev/null
@@ -1,19 +0,0 @@
-#!/bin/sh
-# Runs swift (found on the path) with -use-malloc and GuardMalloc enabled.
-# Command-line arguments are forwarded to the swift compiler untouched.
-# This script can be used to run the test suite with memory debugging enabled
-# by setting the SWIFT environment variable to point to the script, as in:
-#
-#   SWIFT=/path/to/guard-malloc-swift llvm-lit -sv test
-
-export MallocScribble=1
-export MallocPreScribble=1
-export MallocGuardEdges=1
-export MallocCheckHeapStart=100
-export MallocCheckHeapEach=100
-export MallocCheckHeapAbort=1
-export MallocErrorAbort=1
-
-export DYLD_INSERT_LIBRARIES=/usr/lib/libgmalloc.dylib
-
-swift -use-malloc "$@"